Safety device for controlling the flow of combustible fluids.



V w. H. PAINE. 7 Y SAFETY DEVICE FORYCONTROLLING THE FLOW 0F UOMBUSTIBLE FLUIDS.

APPLICATION HLED FEB. 3, I913. RENEWED OCT. b 1914. 1,140 ,3l3,

Patented my 1 1915.

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v rapp'iicationalea retinal-ya, 191's, Serial No. 745,831. (Renewed October 10,1914. Ser1a1 N0. 866,187.

.Y-If i 1 -'-I; i I V V i i v To all wliomitmag concermi I itvknown that I, lV1LnIAM.HowA-nn PAIN a citizen of the United States, and residentfof the city' of Providence, in-the 5 county of Providence and Stateof Rhode Island, have invented certain newand use-J ful Improvements in Safety Devices' for Controllin the Flow of Combustible Fluids,

of which't "e'following is a specification.

0 'll-hisinv'ention relates to an-automatically actuated safety device for 'controlling'the flow of combustible fluids. i 1

It is well known that in theme of internal combustion: engines, either in boats, ve-

15 hicles, or stationary power plants, that the' engine is liable, from various causes, to'back fire through the carburetor, which often sets fire to'the highly combustible fluidtherein contained, and as soon as the carburetor 2o float is burned the gasolene flows out un-= controlled and feeds the flames and in a few moments the whole plant has been de-.

once melt the fusible member andpermitthe 1 valve to close, automatically. cutting off the v supply of fuel, when the fire may be readily extinguished. I

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully de- 40 scribed and particularly pointed out in the appended claims.

Of the accompanying drawings: Figure 1- is a diagrammatic View illustrating my improved safety attachment as applied to a the fuel supply pipe between the fuel receptacle and the engine. valve, the casing being in section, inwhich thefusible member is on the outside of the casing in position to be quickly ,acted upon and fusedbythe heat. M

- Referring to the drawings, 10. designates an internal combustion engine which is provlded wlth the usual manifold or in-take 1 pipe 11, to which the carburetor 12 may be attached. This carbureter may be of any Fig. [2- shows a usual or desired construction, which controls theflow of the fuel to the engine by a float or othersuitable means." In the usual arrangement of a power plant using, such an engine, either-in a boat-or vehicle, fuel ff "'ij incat ip eemine t. Hawai ans, 1915. Y

is usually 'carried:in a tank or receptacle 13," located, for safety, somefdistance from the engine and the, fuel isiconveyedthere-' from tothe enginethrough a ,small supply pipe. 14. The feature'of my inventionis to provide a valvetnormally held in openposition by means of a fusible member, and to 'co'nnectsuch a valve to the supply pipe 14:

adjacent the engineas at 15, and also 1n some cases to connect another adjacent the tank-as atl'6, orothers may be distributed along the pipe at intervals, if desired, whereby the heatfroma: fire in or'near the carpoint between the carbureter, or at any bureter and the tank will quickly melt this fusible member and permit the valve to close and so automatically shut ofl the fuel supply through said pipe.

,The casing 17 is of the usual globe valve type adapted to receive the threaded ends of the pipe 14, the same having a'closure or valve memberldadapted to engagethe seat.

portion 19 to shut oil the flow through said casing. Thismvalve' member isprovided with a long outwardly extending stem 20 which projects through thecap or'bomiet 2l.- This'cap. is cupped out at 22 and a diaphragm 23, which takes the place of a.

packing to prevent leakage around the stein,

is operatively held in this cap being bound aroundits outer edge by a yoke member 24 a havingan annular rim 25 threaded at 26,

into said cap. The outer end of this stem 20 "projects through a bearing 27, in this yoke"-and has a pin 28 of readily fusible material extending transversely through it andengaging'said bearing for the purpose of retaining the valve normally in its'open position, and aspring 29 is arranged to engage the inner end of the cap 21 andpress against said valve 18 to move the same to its seat at once when the fusible in has been destroyed by action of'heat' rom an adjacent fire, thereby automatically shutting off the flow through the supply pipe 14 and preventing the fuel from flowing out from said pipeand feeding theflames.

' It is found in practice that a construction which locates the fusible member outside ofthe valve chamber is'more sensitive and 

